If your horse is shod then you should have the farrier visit every 6 to 8 weeks to trim the hoof and reset the shoes. You should have new shoes put on the horse as old ones can be a bit deformed or worn thin, but it is a good idea to carry a few old ones around with you for emergency spares if your at a show or on the trail etc.
DailyDaily
Daily you should always clean your horses stall at least once a day
A horses stall should be cleaned every day if possible but if not every other day.
when ever your horse gets its feet trimed reguarly. It depends on how fast their feet grow. Its best to ask your farrier.
How often should you change the fuel filter?
a stall?? Once daily...
you should really clean your horses stall from 3-6 days of the week.
A horses stall should be cleaned every day.
You should remove all the droppings and obviously wet bedding twice every day, and completely change the bedding at least once a week.
as often as needed
You should change your oil every 3,000 miles. If you drive your car rough, then you should change it more often.
every week or every other week